Home / 280,913.92-387,658.56-153,588.16

Finding the Fourth Proportional to 280,913.92, 387,658.56 and 153,588.16

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Solution

The fourth proportional to 280,913.92, 387,658.56 and 153,588.16 is: 211,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,913.92 : 387,658.56 = 153,588.16 : x
  2. Step 2: Convert to fraction form
    280,913.92/387,658.56 = 153,588.16/x
  3. Step 3: Cross multiply
    280,913.92x = 387,658.56 × 153,588.16
  4. Step 4: Simplify right side
    280,913.92x = 59,539,764,938.65
  5. Step 5: Solve for x
    x = 59,539,764,938.65/280,913.92
  6. Step 6: Final answer
    x = 211,950.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.